Comments

Author Comment Last activity Moderation
amirberAgain "Yes, it sure been a while, thank you for noticing. It took me some time to get it done, but then another 18 months or so to finally decide I'm putt..." | Read more » about 8 years ago
ilmorales "Dear JSummers I have studied how to perform Arduino project as potenciostado , and frankly, was already giving up because there are many difficult..." | Read more » about 8 years ago
warren "@liz & @matej - did the polystyrene cuvettes last, or did they get melty? I like the nalgene-centric mixing process we used; much easier mixing..." | Read more » about 8 years ago
warren "Aww, i couldn't wait! Posted: https://publiclab.org/notes/warren/02-19-2016/preliminary-led-and-isopropyl-alcohol-solvent-tests-for-oil-fluorescenc..." | Read more » about 8 years ago
dhaffnersr "Hey Jeff! Yeah I think I do have some 405nm LEDs, I have a lot of electronic parts I've scavenged over the years, I'll take a look and let you know. " | Read more » about 8 years ago
mathew "Thank you for posting this, Amir! When I saw your note I immediately thought "I have to look up that guy who posted to the spectrometry list in 20..." | Read more » about 8 years ago
mathew "not sure if you've looked already, but it might be worth looking at the Hacteria's DIY Nanodrop: https://publiclab.org/notes/gaudi/04-03-2014/diy-m..." | Read more » about 8 years ago
mathew "what software did you use for the stitching stage? nice work! " | Read more » about 8 years ago
warren "This was a super great event. I have a draft of a followup post about LED and alcohol tests -- will post on Monday, I believe! " | Read more » about 8 years ago
warren "These are really nice clean datasets, thanks Dave! Do you have any access to 405nm LEDs, to compare with laser tests? It's a question we're intere..." | Read more » about 8 years ago
micahs "We are just after the confluence of the Missouri and Mississippi Rivers. This is the entry to the Chain of Rocks Canal, which was built in the 1940..." | Read more » about 8 years ago
Rural "Good points Chris. I'm always curious as to the factors in design decisions and know to dose any suggested "improvements" with humbleness. I hope t..." | Read more » about 8 years ago
cfastie "other areas (not foliage) showed values between 0.2 and 0.9 and I don't know why, since there is no photosynthesis occuring there. Getting high ND..." | Read more » about 8 years ago
warren "Hi, @mokeymark - I'm tracking the bug here: https://github.com/publiclab/spectral-workbench/issues/338 Thanks for reporting, we hope to have a fix..." | Read more » about 8 years ago
warren "This is a beautiful map - what's it of? " | Read more » about 8 years ago
warren "This is a beautiful map - what's it of? " | Read more » about 8 years ago
stoft "Great! Yes, little glitches do creep in but yes, this Solux corrected plot has a much better shape. I'm guessing the slight curve variation between..." | Read more » about 8 years ago
warren "OK, a bunch of solved problems! figured out the height difference -- needs to be resolved, but I believe due to a bug, we were multiplying each p..." | Read more » about 8 years ago
stoft "Jeff, thanks for pointing this out. I admit I do find the SWB terminology a bit overloaded and the user interface 'unexpected' as I'm not used to i..." | Read more » about 8 years ago
warren "Hi, Dave - i noticed that https://spectralworkbench.org/spectrums/71409 has a linearCalibration operation - I think by mistake, as it's not a CFL. ..." | Read more » about 8 years ago
warren "Hi, Abhay7417 - can you get the arduino to actually type out the values using the Arduino HID library? https://www.arduino.cc/en/Reference/HID If ..." | Read more » about 8 years ago
warren "I see you've posted a second question; i'll answer there! https://publiclab.org/notes/Abhay7417/02-18-2016/question-spectrometer-using-photosensor " | Read more » about 8 years ago
warren "Also, regarding the unit precision, I've opened an issue at https://github.com/publiclab/spectral-workbench/issues/335 and would love your input on..." | Read more » about 8 years ago
mokeymark "Very good idea. I also have a large selection of high-CRI white LED's. Range from I think 2500k to 5500k. I want to compare results from Ocean Opti..." | Read more » about 8 years ago
Abhay7417 "Since spectral bench access values on its own, i am printing light sensor values on arduino console. Can you please help me how to make this interf..." | Read more » about 8 years ago
stoft "Also would be nice ..... while you have the Ocean Optics spectrometer available, capture the best resolution spectra you can of a 2700K CFL as that..." | Read more » about 8 years ago
mokeymark "Good deal. Gotta love Amazon. I'll use a laboratory power supply for the testing. " | Read more » about 8 years ago
stoft "I bought mine from a Solux distributor, but I assume ones like this: http://www.amazon.com/18003-Daylight-Halogen-Degree-Kelvin/dp/B0002GS4OG are p..." | Read more » about 8 years ago
mokeymark "I will try to find a SoLux 4700k to measure! I could be mistaken, but those look like a direct replacement for the bulbs in my odd kitchen fixture,..." | Read more » about 8 years ago
stoft "While there will be some variation between individual lamps, even the spectra of one sample, taken with a commercial spectrometer, would be useful;..." | Read more » about 8 years ago